Les Cayes, often referred to as Aux Cayes, is a commune and seaport in the Les Cayes Arrondissement, in the Sud department of Haiti, with a population of 71,236. Due to its isolation from the political turmoil of the capital, Port-au-Prince, it is one of Haiti's major ports, with export trade concentrating on mostly coffee and sugarcane. As the world's largest supplier of vetiver, it exports 250 tons annually of this ingredient of perfume and fragrance manufacturing. Minor exports include bananas and timber.

Haitian Creole, or simply Creole, is a French-based creole language spoken by 10 to 12 million people worldwide, and is one of the two official languages of Haiti, where it is the native language of the vast majority of the population. Northern, Central, and Southern dialects are the three main dialects of Haitian Creole. The Northern dialect is predominantly spoken in Cap-Haïtien, Central is spoken in Port-au-Prince, and Southern in the Cayes area.